Finding the Fourth Proportional to 875,840.99, 1,208,681.80 and 488,653.59
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Solution
The fourth proportional to 875,840.99, 1,208,681.80 and 488,653.59 is: 674,353.81
Step by Step Solution
- Step 1: Write the proportion equation
875,840.99 : 1,208,681.80 = 488,653.59 : x - Step 2: Convert to fraction form
875,840.99/1,208,681.80 = 488,653.59/x - Step 3: Cross multiply
875,840.99x = 1,208,681.80 × 488,653.59 - Step 4: Simplify right side
875,840.99x = 590,626,704,048.59 - Step 5: Solve for x
x = 590,626,704,048.59/875,840.99 - Step 6: Final answer
x = 674,353.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.